Finding the Fourth Proportional to 80,371.46, 120,565.19 and 29,783.99
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Solution
The fourth proportional to 80,371.46, 120,565.19 and 29,783.99 is: 44,678.95
Step by Step Solution
- Step 1: Write the proportion equation
80,371.46 : 120,565.19 = 29,783.99 : x - Step 2: Convert to fraction form
80,371.46/120,565.19 = 29,783.99/x - Step 3: Cross multiply
80,371.46x = 120,565.19 × 29,783.99 - Step 4: Simplify right side
80,371.46x = 3,590,912,789.18 - Step 5: Solve for x
x = 3,590,912,789.18/80,371.46 - Step 6: Final answer
x = 44,678.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.